The province of Pontus became Diospontus in the Diocese of Pontus by 314. Following the death of Helena, mother of Constantine I, in 328 it was renamed Helenopontos. In 535/6 it was joined with Pontus Polemoniacus but retained the name Helenopontos.
      
      Creators: J.J. Wilkes, R.S. Bagnall, S. Mitchell, S.T. Parker
      
      Contributors: Brian Z. Lund, R. Talbert, Mary E. Downs, M. Joann McDaniel,
      
       Sean Gillies,
      
       Jeffrey Becker,
      
       Tom Elliott
      
      Modifications: edited
      
      Actors:
      
       Tom Elliott